The demand curve for Widgets is given by QD = 125 + 1.5y - 25p + 30pG, where QD is the quantity of widgets demanded, y is the per capita income and pG is the price of Gizmos. An increase in the price of Widget itself will cause Group of answer choices 1 demand shifts left. 2 demand increases. 3 movement along the demand curve. 4 demand shifts right.

Which of the following must be true if good X is a normal good and income increases? Group of answer choices The demand for X will increase, and thus the price and quantity sold and bought willincrease. The demand for X will decrease, and thus the price and quantity sold and bought willdecrease. The demand for X will increase, and thus the price and quantity sold and bought willdecrease. The demand for X will decrease, and thus the price and quantity sold and bought willincrease.

When your bumper stickers were priced at $6, you sold 35 in one month. This month, you priced them at $8, and you sold 30. a. Find the corresponding equation for the demand q in terms of the unit price p in dollars. b. Give the corresponding monthly revenue as a function of unit price Pin dollars. C.. What should you price the bumper stickers at in order to earn the maximum monthly revenue?